﻿/* Copyright 2018-present MongoDB Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

using System;
using System.Linq;

namespace MongoDB.Bson.TestHelpers.JsonDrivenTests
{
    public static class JsonDrivenHelper
    {
        // public static methods
        public static void EnsureAllFieldsAreValid(BsonDocument document, params string[] expectedNames)
        {
            foreach (var actualName in document.Names)
            {
                if (!expectedNames.Contains(actualName))
                {
                    throw new FormatException($"Invalid field: {actualName}.");
                }
            }
        }

        public static void EnsureFieldEquals(BsonDocument document, string name, BsonValue value)
        {
            if (!document.Contains(name))
            {
                throw new FormatException($"Missing field: \"{name}\".");
            }

            if (!document[name].Equals(value))
            {
                throw new FormatException($"Field \"{name}\" has an invalid value: {value.ToJson()}.");
            }
        }
    }
}
